Highest Common Factor of 840, 798, 700 using Euclid's algorithm

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023


HCF Calculator using the Euclid Division Algorithm helps you to find the Highest common factor (HCF) easily for 840, 798, 700 i.e. 14 the largest integer that leaves a remainder zero for all numbers.

HCF of 840, 798, 700 is 14 the largest number which exactly divides all the numbers i.e. where the remainder is zero. Let us get into the working of this example.

Consider we have numbers 840, 798, 700 and we need to find the HCF of these numbers. To do so, we need to choose the largest integer first and then as per Euclid's Division Lemma a = bq + r where 0 ≤ r ≤ b

Highest common factor (HCF) of 840, 798, 700 is 14.

HCF(840, 798, 700) = 14

HCF of 840, 798, 700 using Euclid's algorithm

Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.

HCF of:

Highest common factor (HCF) of 840, 798, 700 is 14.

Highest Common Factor of 840,798,700 using Euclid's algorithm

Highest Common Factor of 840,798,700 is 14

Step 1: Since 840 > 798, we apply the division lemma to 840 and 798, to get

840 = 798 x 1 + 42

Step 2: Since the reminder 798 ≠ 0, we apply division lemma to 42 and 798, to get

798 = 42 x 19 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 42, the HCF of 840 and 798 is 42

Notice that 42 = HCF(798,42) = HCF(840,798) .


We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma

Step 1: Since 700 > 42, we apply the division lemma to 700 and 42, to get

700 = 42 x 16 + 28

Step 2: Since the reminder 42 ≠ 0, we apply division lemma to 28 and 42, to get

42 = 28 x 1 + 14

Step 3: We consider the new divisor 28 and the new remainder 14, and apply the division lemma to get

28 = 14 x 2 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 14, the HCF of 42 and 700 is 14

Notice that 14 = HCF(28,14) = HCF(42,28) = HCF(700,42) .

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Frequently Asked Questions on HCF of 840, 798, 700 using Euclid's Algorithm

1. What is the Euclid division algorithm?

Answer: Euclid's Division Algorithm is a technique to compute the Highest Common Factor (HCF) of given positive integers.

2. what is the HCF of 840, 798, 700?

Answer: HCF of 840, 798, 700 is 14 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 840, 798, 700 using Euclid's Algorithm?

Answer: For arbitrary numbers 840, 798, 700 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.